WO2005064695A3 - Low refractive index gap for enhanced light extraction from a display or lighting element - Google Patents

Low refractive index gap for enhanced light extraction from a display or lighting element Download PDF

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Publication number
WO2005064695A3
WO2005064695A3 PCT/BE2004/000183 BE2004000183W WO2005064695A3 WO 2005064695 A3 WO2005064695 A3 WO 2005064695A3 BE 2004000183 W BE2004000183 W BE 2004000183W WO 2005064695 A3 WO2005064695 A3 WO 2005064695A3
Authority
WO
WIPO (PCT)
Prior art keywords
display
lighting element
refractive index
low refractive
light extraction
Prior art date
Application number
PCT/BE2004/000183
Other languages
French (fr)
Other versions
WO2005064695A2 (en
Inventor
Kristiaan Neyts
Original Assignee
Univ Gent
Kristiaan Neyts
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Univ Gent, Kristiaan Neyts filed Critical Univ Gent
Publication of WO2005064695A2 publication Critical patent/WO2005064695A2/en
Publication of WO2005064695A3 publication Critical patent/WO2005064695A3/en

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Classifications

    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/80—Constructional details
    • H10K59/875—Arrangements for extracting light from the devices
    • H10K59/879—Arrangements for extracting light from the devices comprising refractive means, e.g. lenses

Abstract

A display or lighting element (20) is described allowing an enhanced emission intensity to be coupled out. The display or lighting element comprises a first substrate (22) whereon in sequence a bottom electrode (24), a light emitting structure (26) and a top electrode (30) is deposited and whereon a second substrate (34) is mounted on top of the top electrode (30), thereby providing a gap (32) between the second substrate (34) and the top electrode (30). By tuning the thickness of the gap (32), which is vacuum or filled with a material having a low refractive index, the emission intensity can be increased based on microcavity properties like wide angle interference and multiple beam interference. The enhanced emission intensity only has a limited wavelength and angle dependency.
PCT/BE2004/000183 2003-12-29 2004-12-24 Low refractive index gap for enhanced light extraction from a display or lighting element WO2005064695A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US53292903P 2003-12-29 2003-12-29
US60/532,929 2003-12-29

Publications (2)

Publication Number Publication Date
WO2005064695A2 WO2005064695A2 (en) 2005-07-14
WO2005064695A3 true WO2005064695A3 (en) 2005-08-11

Family

ID=34738846

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/BE2004/000183 WO2005064695A2 (en) 2003-12-29 2004-12-24 Low refractive index gap for enhanced light extraction from a display or lighting element

Country Status (2)

Country Link
TW (1) TW200524469A (en)
WO (1) WO2005064695A2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8179034B2 (en) 2007-07-13 2012-05-15 3M Innovative Properties Company Light extraction film for organic light emitting diode display and lighting devices
US20220052295A1 (en) * 2014-11-19 2022-02-17 Mitchell C. Nelson Quarter-wave oled
TWI622167B (en) * 2016-12-30 2018-04-21 錼創科技股份有限公司 Display device
CN110767824B (en) * 2018-08-06 2022-03-22 昆山国显光电有限公司 Transparent display panel, display screen and electronic terminal equipment

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6091197A (en) * 1998-06-12 2000-07-18 Xerox Corporation Full color tunable resonant cavity organic light emitting diode
EP1096579A2 (en) * 1999-10-29 2001-05-02 Sel Semiconductor Energy Laboratory Co., Ltd. Organic light-emitting device
EP1100129A2 (en) * 1999-11-10 2001-05-16 Matsushita Electric Works, Ltd. Substrate for light emitting device, light emitting device and process for production of light emitting device
EP1154676A1 (en) * 1999-11-22 2001-11-14 Sony Corporation Display device
US20030048072A1 (en) * 2001-08-29 2003-03-13 Shingo Ishihara Organic light emitting element and display device using organic light emitting element

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6091197A (en) * 1998-06-12 2000-07-18 Xerox Corporation Full color tunable resonant cavity organic light emitting diode
EP1096579A2 (en) * 1999-10-29 2001-05-02 Sel Semiconductor Energy Laboratory Co., Ltd. Organic light-emitting device
EP1100129A2 (en) * 1999-11-10 2001-05-16 Matsushita Electric Works, Ltd. Substrate for light emitting device, light emitting device and process for production of light emitting device
EP1154676A1 (en) * 1999-11-22 2001-11-14 Sony Corporation Display device
US20030048072A1 (en) * 2001-08-29 2003-03-13 Shingo Ishihara Organic light emitting element and display device using organic light emitting element

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NEYTS K ET AL: "SEMITRANSPARENT METAL OR DISTRIBUTED BRAGG REFLECTOR FOR WIDE-VIEWING-ANGLE ORGANIC LIGHT-EMITTING-DIODE MICROCAVITIES", JOURNAL OF THE OPTICAL SOCIETY OF AMERICA - B, OPTICAL SOCIETY OF AMERICA, WASHINGTON, US, vol. 17, no. 1, January 2000 (2000-01-01), pages 114 - 119, XP002936799, ISSN: 0740-3224 *

Also Published As

Publication number Publication date
TW200524469A (en) 2005-07-16
WO2005064695A2 (en) 2005-07-14

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